CHECK VALVE Russian patent published in 2008 - IPC F16K15/03 F16K47/02 

FIELD: valving systems.

SUBSTANCE: check valve comprises housing provided with seat and rotatable disk. The disk is mounted on two half-axles for permitting rotation. The half-axles that are mounted inside the housing and provided with blades that are used for damping. The blades are located inside casings. The inner space of the casings is filled with a damping liquid. The casings are secured to the rotatable disk. The inner space of the casing is connected with the inner space of the housing of the check valve.

EFFECT: enhanced reliability.

1 cl, 2 dwg